Good heavens! You ate a pretzel?! The heavens are going to punish you!!! Not really..not any worse than you are beating yourself up right now! I would bet you probably ate much less than you normally would have...and really ballparks don't offer the healthiest selections. So ..stop beating yourself up! A trick you can try that I do at my daughter's soccer games is to have water, protein shakes, and a small snack of pre-portioned nuts, PB, or other high protein snack toted in a small lunch sized cooler. Easy, portable, & very doable! Keeps me on track! May help you stay on target too! But above all..Give yourself some credit!!!